/*
 * @Author: your name
 * @Date: 2022-02-22 09:22:36
 * @LastEditTime: 2022-02-22 09:55:53
 * @LastEditors: Please set LastEditors
 * @Description: 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
 * @FilePath: \Blog\模块化\02_CommonJS-Node\app.js
 */
/**
  1. 定义暴露模块:
    module.exports = value;
    exports.xxx = value;
  2. 引入模块:
    var module = require(模块名或模块路径);
 */
//引用模块
